Asics Gel-Cumulus 15 Running Shoes. Fans of the GEL-Cumulus® series will love the technical updates that improve both upper fit and its exceptionally cushioned ride. Its surprisingly stable platform is suitable for underpronators to mild overpronators and will surprise the wearer with the superb fit and cushioned ride. And buy this Asics Gel-Cumulus 15 Running Shoes Was £109.99 Now £69.99.